KR101673052B1 - A device for cutting weeds - Google Patents

Abstract

[0001] The present invention relates to a mowing device, and more particularly, to a mowing device having a plate-shaped body, a driving wheel provided on one side of the body part so as to be rotatable by a steering shaft, a driving driving part for driving the driving wheel, A plurality of driven wheels rotatably mounted on one side of the body, a lawn mower having a cutter protruding from the outside of the body, and a control unit operably provided by an operator, It is possible to prevent obstacles from being obstructed, to change the direction of movement quickly and rapidly, and to allow a worker to safely perform a mowing operation from a distance from a cutter.

Description

{A DEVICE FOR CUTTING WEEDS}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mowing device, and more particularly, to a mowing device for rotating a cutter to cut grass or grass of a graveyard or the like.

Generally, mowing devices are equipment used to remove grass and lawns such as graveyards, rice paddies, and lawns.

The conventional mowing apparatus for the worker puts the engine and the fuel cell on the shoulder, and holds the workbench equipped with the cutter blade at the tip with the hand. The turning force of the engine is transmitted to the mowing day through the workbench and the mowing work is performed by rotating the motor at high speed.

However, the mowing work is done in a hot season where the grass grows a lot. The mowing work on the shoulder for a long time has a high labor intensity, and the worker is likely to work adjacent to the mowing day, there was.

In order to solve this problem, a movable mowing device has been developed, but these devices have a high center of gravity, causing the device to overturn or obstruct the mowing device during mowing operation.

Further, not only the direction can not be changed quickly but also it can not be easily turned at an arbitrary angle of 360 degrees, so that the direction of movement can not be changed suddenly.

Korea Patent Publication No. 2009-0002379

The present invention has been made in order to solve the problems of the conventional mowing apparatus as described above, and it is possible to prevent the device from overturning or being obstructed by an obstacle during the mowing operation, The present invention provides a mowing device capable of safely performing a mowing operation from a cutter at a remote place.

In order to achieve the above object, a mowing apparatus according to the present invention includes: a plate-like body portion; a driving wheel that is rotatably mounted on a side of the body portion by a steering shaft and is rotatable about 360 degrees, A steering mechanism for adjusting the turning angle of the driving wheel, a steering mechanism for moving the body along a direction in which the body is moved along the direction of movement of the body, A turntable rotatably provided on the upper side of the main body and pivoting the lawn mower, a swivel driving unit for driving the turntable, and a swing arm provided on one side of the turntable and protruding in one direction outside the turntable A lawn mowing machine, and a worker, wherein the driving driving portion, the steering mechanism, And a control unit for outputting a command signal to the sphere.

In the mowing apparatus according to the embodiment of the present invention, the steering mechanism includes a driven gear provided to be rotatable integrally with the steering shaft, a drive gear for driving the driven gear, and a steering motor for driving the drive gear .

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The mowing device according to the embodiment of the present invention may further include a stopper provided at one side of the body and a stopper protrusion provided at one side of the turntable and restricting the turning angle of the turntable, .

The lawn mower according to an embodiment of the present invention is characterized in that the lawn mower has a cutter arm rotatably coupled to a leading end thereof and slidably mounted on one side of the turntable along a radial direction thereof, A driving sprocket and a driven sprocket, a driving belt for interlocking the driving sprocket and the driven sprocket, and a cutter driving unit for driving the driving sprocket.

In the mowing apparatus according to the embodiment of the present invention, the lawn mower may further include a plunger for fixing and supporting the cutter arm.

In the mowing apparatus according to an embodiment of the present invention, the control unit includes a wireless receiving unit that applies a command signal to the driving unit, the steering mechanism, and the lawn mowing unit, and a wireless unit that is operated by an operator and outputs a control command to the wireless receiving unit And an adjustment unit.

As described above, according to the mowing apparatus according to the present invention, it is possible to prevent the apparatus from being overturned or obstructed during the mowing operation due to the low center of gravity structure.

According to the present invention, by turning the wheel at an arbitrary angle of 360 degrees, it is possible to quickly and rapidly switch the moving direction during the mowing operation.

According to the present invention, a worker can remotely adjust a traveling operation, a steering operation, and a pivoting operation by radio, thereby making it possible to safely perform a mowing operation from a cutter at a remote place.

1 is a schematic side view showing a mowing apparatus according to an embodiment of the present invention,
Fig. 2 is a schematic plan view of the mowing device shown in Fig. 1,
Fig. 3 is a schematic right-side section view of the mowing device shown in Fig. 1,
Figs. 4 and 5 are operational state diagrams of the mowing apparatus shown in Fig. 2. Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 5, a mowing apparatus according to an embodiment of the present invention includes a plate-shaped body 10, a shaft 22 rotatably mounted on one side of the body 10, A steering wheel 25 for driving the driving wheel 21, a steering mechanism for adjusting the turning angle of the driving wheel 21, a plurality of steering wheel rotatably disposed on one side of the body 10, A turning wheel 28, a lawn mower having a cutter 41 protruding from the outside of the body 10, a turn table 50 for turning a lawn mower, a turn driving part for driving the turn table, and an operator And a controller.

The body part 10 is formed in a plate shape so that the parts are assembled low and wide as a whole to have a low center of gravity so that it is possible to prevent the apparatus from being overturned or hindered by an obstacle during the mowing operation.

A drive wheel 21 and a driven wheel 28 are rotatably coupled to the bottom surface of the body 10.

The driving wheel 21 is rotated by the driving driving part 25 to move the body part 10 and the driven wheel 28 is not driven by the rotational force and the body part 10 is moved by the driving wheel 21 The body 10 moves and moves along the direction in which the body 10 moves. The drive wheel 21 is rotatable 360 degrees about the steering shaft 22 and the driven wheel 28 is rotated 360 degrees about the driven shaft 29. [

3, a drive shaft 26 is provided coaxially with the rotation axis of the motor. A pair of drive wheels 21 are fixed to both ends of the drive shaft 26, Lt; / RTI > The driving unit 25 is powered by the power supply unit 60 and drives the driving wheel 21 by rotating the driving shaft 26 directly.

The steering shaft 22 is provided with a power supply terminal 61 for supplying power to the travel driving unit 25. The power supply terminal 61 rotates integrally with the steering shaft 22 and the brush terminal 62 is brought into rolling contact with the power supply terminal 61 so that the power of the power supply unit 60 is supplied to the drive unit 25, . The brush terminal 62 is fixed to one side of the body 10 and electrically connected to the brush terminal 62 by rolling contact with the brush terminal 62 while rotating the brush terminal 62. Accordingly, even if the driving wheel 21 rotates 360 degrees around the steering shaft 22, power can be continuously supplied to the driving driving unit 25. [

The driving drive unit 25 is not limited to an electric motor but an engine using fuel can also be used. It is needless to say that a separate power supply unit is not required in the case of the engine but the fuel supply source must be mounted so as to act integrally with the driving wheel 21. [

The steering mechanism includes a driven gear 31 that is integrally rotatable with the steering shaft 22, a drive gear 32 that drives the driven gear 31, and a steering motor 34 that drives the drive gear 32 ).

3, the driven gear 31 is coupled to the outer peripheral surface of the steering shaft 22 and the idle gear 33 and the drive gear 32 are continuously engaged with the driven gear 31. As shown in Fig. When the driving gear 32 is rotated by the steering motor 34, the steering shaft 22 is rotated integrally with the driven gear 31 to change the moving direction of the driving wheel 21. [ When the steering motor 34 is adjusted in the forward and reverse directions, the direction of rotation of the steering shaft 22 is also switched. In this manner, the driving wheel 21 can be turned at an arbitrary angle of 360 degrees by the steering motor 34, thereby making it possible to quickly and rapidly switch the moving direction during the mowing operation.

The turntable 50 is provided on one side of the body 10 so as to be pivotable by the pivot shaft 51, and is turned by the pivot drive unit.

The swiveling drive portion is constituted by a ring gear 52 coupled to the outer peripheral surface of the pivot shaft 51, a pinion gear 53 meshing with the ring gear 52, and a swing motor 54 driving the pinion gear 53 . When the swing motor 54 is powered by the power supply unit 60 and the pinion gear 53 rotates the ring gear 52, the turntable 50 is turned. The pinion gear 53 shown in Fig. 1 is a bevel gear.

A stopper protrusion 55 is provided at one side of the turntable 50 and a stopper 56 is provided at one side of the body 10 to restrict the turning angle of the turntable 50. 5, when the turntable 50 rotates at a predetermined angle, the stopper protrusion 55 is blocked by the stopper 56, thereby limiting the turning angle of the turntable 50. As shown in FIG.

A lawn mower is mounted on one side of the turntable 50 to perform a mowing operation while turning with the turntable 50.

The lawn mower includes a cutter arm 42 slidably disposed on one side of the turntable 50 along a radial direction thereof, a drive sprocket 43 and a driven sprocket 44 for transmitting rotational force to the cutter 41, a drive sprocket A drive belt 45 for interlocking the drive sprocket 43 with the driven sprocket 44, a cutter drive part 46 for driving the drive sprocket 43 and a plunger 47 for fixing and supporting the cutter arm 42 .

A cutter 41 is rotatably coupled to the front end of the cutter arm 42 and the cutter 41 is axially rotated integrally with the driven sprocket 44. When the power is supplied from the power supply unit 60 to the cutter driving unit 46, the driving sprocket 43 rotates and rotates the driven sprocket 44 through the driving belt 45.

As shown in FIG. 2, the plunger 47 is elastically retractable on one side of the turntable 50 to fix the cutter arm 42 at a predetermined position. A plunger receiving groove (not shown) for receiving the plunger 47 is formed at one side of the cutter arm 42 at a predetermined interval along the longitudinal direction thereof.

The control unit includes a radio driving unit (not shown) for applying a command signal to the traveling driving unit, the steering mechanism and the lawn mower, and a radio control unit (not shown) operated by the operator and outputting a control command to the radio receiving unit .

When the operator outputs the control command by operating the wireless adjusting unit, the wireless receiving unit receives the control command and drives the driving driving unit to make the traveling possible, changes the moving direction to the steering unit, turns the lawn mower to the turntable (50) So that the user can perform the operation.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious that the modification or the modification is possible by the person.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10:
21: drive wheel
22: Steering axis
25:
26:
28: driven wheel
29:
31:
32: drive gear
33: idle gear
34: Steering motor
41: Cutter
42: Cutter arm
43: drive sprocket
44: Follower sprocket
45: drive belt
46: Cutter driving part
47: Plunger
50: Turntable
51: pivot shaft
52: ring gear
53: Pinion gear
54: Swivel motor
55: Stopper projection
56: Stopper
60: Power supply
61: Power supply terminal
62: Brush terminal

Claims (7)

A plate-like body portion;
A driving wheel provided on one side of the body part and rotatable about 360 degrees by a steering shaft, the driving wheel moving the body part;
A driving driving unit for driving the driving wheels;
A steering mechanism for adjusting a turning angle of the driving wheel;
A plurality of driven wheels mounted on one side of the body part, the plurality of driven wheels being driven to move together along the direction in which the body moves, and being rotatable about 360 degrees about the driven axis;
A turntable rotatably provided on the upper side of the body and turning the lawn mower;
A swivel driving unit for driving the turntable;
A lawn mower provided at one side of the turntable, the lawn mower having a cutter protruding from one side of the turntable; And
A control unit operable by an operator to output a command signal to the travel driving unit, the steering mechanism, and the lawn mower;
. ≪ / RTI > The steering apparatus according to claim 1,
A driven gear provided integrally and rotatably with the steering shaft;
A driving gear for driving the driven gear; And
A steering motor for driving said drive gear;
And a control unit for controlling the squeezing device. delete The method according to claim 1,
A stopper provided at one side of the body portion; And
A stopper protrusion provided on one side of the turntable and restricting the turning angle of the turntable while being blocked by the stopper;
Further comprising: 2. The lawn mower according to claim 1,
A cutter arm rotatably coupled to a front end of the turntable, the cutter arm being slidably mounted on one side of the turntable along a radial direction thereof;
A drive sprocket and a driven sprocket for transmitting rotational force to the cutter;
A drive belt for interlocking the drive sprocket and the driven sprocket; And
A cutter driving unit for driving the drive sprocket;
And a control unit for controlling the squeezing device. 6. The lawn mower of claim 5,
And a plunger for fixing and supporting the cutter arm. The apparatus of claim 1,
A wireless receiver for applying a command signal to the travel driving unit, the steering mechanism, and the lawn mower; And
And a radio control unit which is operated by an operator and outputs a control command to the radio receiving unit.

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